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Editorial Team
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Asked: 2026-05-24T04:37:46+00:00

My objective is to read an XML text file and split each word and

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My objective is to read an XML text file and split each word and tag into there own line in an array.

For example, if I input this text into my program:

<note>
<to>Tove</to>
<from>Jani</from>
<heading>Reminder</heading>
<body>Don't forget me this weekend!</body>
</note>

I would get this:

<note>
<to>
Tove
</to>
<from>
...

Right now I have code that can successfully do this but only with the words so instead of the above list I get:

note
to
Tove
...

I want to keep the tags or I wont be able to do what I want with it. So I have been trying to get it to also add the tags but have been failing

Okay so here is my code:

//While the file is not empty
while(fgets(buffer, sizeof(buffer), stdin) != NULL){
    int first = 0;
    int last = 0;

    //While words are left in line
    while(last < INITIAL_SIZE && buffer[last] != '\0'){
        int bool = 0;
        //Tag detected
        if(buffer[last] == '<'){
            while(buffer[last] != '>'){
                last++;
            }

            bool = 1;
        }else{
            //While more chars are in the word
            while(last < INITIAL_SIZE && isalpha(buffer[last])){
                last++;
            }
        }
        //Word detected
        if(first < last){
            //Words array is full, add more space
            if(numOfWords == sizeOfWords){
                sizeOfWords = sizeOfWords + 10;
                words = (char **) realloc(words, sizeOfWords*sizeof(char *));
            }               
            //Allocate memory for array
            words[numOfWords] = (char *) calloc(last-first+1, sizeof(char));


            for(i = 0; i < (last-first); i++){
                words[numOfWords][i] = buffer[first + i];
            }
            //Add terminator to "new word"
            words[numOfWords][i] = '\0';
            numOfWords++;   
        }           
        //Move "Array Pointers" accordingly
            last++;
            first = last;
    }       
}

Any one have any idea, with the above code this is the printout:

<note
<to
Tove
to 
<from
Jani
from
<heading
...
Don
t
forget
me
this
weekend
</body
</note

So after this wall of text, does anyone have any idea on how I can modify my current code to get this to work? Or does anyone else have an alternative?

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1 Answer

  1. Editorial Team

    Even though it is highly doubtful that anyone would ever use this I got it to work by using Boolean type logic.

    while (fgets(buffer, sizeof(buffer), stdin) != NULL) {
    int first = 0;
    int last = 0;

    //While words are left in line
    while (last < INITIAL_SIZE && buffer[last] != '\0' && buffer[last] != '\n'){
        int Bool = 0;
        //Tag detected
        if (buffer[last] == '<'){
            while (buffer[last] != '>')
                last++;
            Bool = 1;
        }else
            //While more chars are in the word
            while(last < INITIAL_SIZE && !isspace(buffer[last]) && buffer[last] != '<')
                last++;

        //Word detected
        if (first < last) {
            //Words array is full, add more space
            if (numOfWords == sizeOfWords) {
                sizeOfWords = sizeOfWords + 10;
                words = (char **) realloc(words, sizeOfWords * sizeof(char *));
            }
            //Allocate memory for array
            words[numOfWords] = (char *) calloc(last - first + 1, sizeof(char));

            int xHolder = 0;
            if(buffer[first] == '/'){
                words[numOfWords][0] = '<';
                xHolder++;
                Bool++;
            }
            for (i = 0; i < (last - first + Bool); i++) {
                words[numOfWords][xHolder] = buffer[first + i];
                xHolder++;
            }
            //Add terminator to "new word"
            words[numOfWords][i] = '\0';
            numOfWords++;
        }
        //Move "Array Pointers" accordingly
        last++;
        first = last;
    }
}
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